Question 1

If I am 13 years old, I have gone round the sun ___ times.&#10;A)Never gone round the sun&#10;B)13&#10;C)26&#10;D)Shall go round the sun when I shall be 15

Accepted Answer

The Earth orbits the sun once every year, so if you are 13 years old, you have gone around the sun 13 times.

Question 2

____ appears as bright head with long tail. the tail grows in size as it approaches the sun.&#10;A)Asteroid&#10;B)Comet&#10;C)Planet&#10;D)Meteor

Accepted Answer

Comets are known for their bright heads and long tails, which grow in size as they approach the Sun due to the solar wind and radiation causing the comet's materials to vaporize and stream out into space, creating the visible tail.

Question 3

During a clear night sky, bright light streaks are often visible called shooting stars. the are actually&#10;A)Falling stars&#10;B)Comet&#10;C)Meteors&#10;D)Planet

Accepted Answer

Shooting stars are not actually stars; they are meteors. When meteoroids enter Earth's atmosphere and vaporize, they create the bright streaks in the sky known as meteors.

Question 4

_____ was the first Indian satellite.&#10;A)INSAT&#10;B)EDUSAT&#10;C)IRS&#10;D)Aryabhatta

Accepted Answer

Aryabhatta was the first Indian satellite, launched by the Soviet Union on 19 April 1975.

Question 5

If Saturn is thrown into an ocean,&#10;A)It will float&#10;B)It will sink&#10;C)It will dissolve&#10;D)It will soak all water

Accepted Answer

Saturn would float if it were placed in a large enough body of water because its average density is less than that of water. Saturn's density is about 0.687 grams per cubic centimeter, which is less than water's density of 1 gram per cubic centimeter.

Question 6

It is difficult to observe Mars because&#10;A)It is the smallest planet of this universe&#10;B)It is too far away from our planet&#10;C)It is hidden by the glare of the sun&#10;D)None of the above

Accepted Answer

Mars can be difficult to observe when it is near the Sun in the sky, as the Sun's glare can obscure it.

Question 7

Ravi was looking for Venus in the sky at midnight. Mohan laughed at him because Venus&#10;A)Appears 1-3 hours after sunrise or 1-3 hours after sunset&#10;B)Appears 1-3 hours before sunrise or 1-3 hours after sunset&#10;C)Appears 1-3 hours before sunrise or 1- 3 hours before sunset&#10;D)Appears 1-3 hours after sunrise or 1-3 hours before sunset

Accepted Answer

Venus is known as the "Morning Star" or "Evening Star" because it is visible either in the early morning before sunrise or in the evening after sunset, but not at midnight.

Question 8

Earlier we had 9 planets in our solar system of which one name has been eliminated as per IAU (2006). The planet is&#10;A)Uranus&#10;B)Neptune&#10;C)Pluto&#10;D)Earth

Accepted Answer

Pluto was reclassified from a planet to a "dwarf planet" by the International Astronomical Union (IAU) in 2006.

Question 9

Light Year is&#10;A)Year full of light&#10;B)Year having light work&#10;C)Year which earth shall become lighter&#10;D)Distance travelled by light in 1 year

Accepted Answer

A light year is a measure of distance, not time. It represents the distance that light travels in one year in a vacuum, which is approximately 9.46 trillion kilometers or about 5.88 trillion miles.

Deck 1: Astronomy and Space Exploration